Answer Happy

1 pts D Question 26 "Robust australopithecines," now classified in the genus Paranthropus, are distinctive as compared to other hominins because of their O huge teeth, faces, jaws, and jaw muscles. unusually large brains. O knuckle walking ability cave paintings and other artwork O great height

2 pts Question 27 The figure below shows the results of comparative analyses of two clades: the horseshoe crabs, and the king crabs and hermit crabs. The length of each branch on these phylogenies represents genetic distance measured as the percentage difference in 16S rRNA gene sequences in mitochondrial DNA. The scale is the same for both trees. The fairy shrimp Artemia salina (also a crustacean) was used as the outgroup to root each of these trees What can you conclude from these diagrams? Tgigos A b) Afeia sana Cl wiatus Tous tridentatus AB Crotundicauda AB Plongicarpus Pa Camtschatica La splendescents Loyphemus A L polyphemus Pacadianus 4 Arterna sala bernardus 5 4 3 2 1 0 Genetic distance 5 4 3 2 1 0 O Horseshoe crabs have not been subjected to significant stabilizing selection Horseshoe crabs have been on the Earth for an unusually long time. O Hermit crabs are much older than their fossil record reveals O Horseshoe crabs are at least as genetically divergent as king and hermit crabs, despite being tar less morphologically diverse Oking crabs appeared in the fossil record before horseshoe crabs did